Ingot-mold stool.



Wmmssm; I

T. H. KENVIN.

INGOT MOLD STOOL.

APPLICATION FILED MAR.5.1915.

Patented 00. 26, 1915.

..,J F mi 1 INVENTOR.

i Ynnrrnin s ams ma nr @lihllQE.

-. THOMAS H. KENVIN, or HOMESTEAD,.PiElNNSYLVANIA.

' raiserorin s'roo 3T0 alt whom it may concern residing at'Homestead, in the countyof Allegheny and; State-of Pennsylvania, have invented certain new and :useful Improvements' indrigot-Mold Stools, of which the following is a specification.

The'present invention relates to improvements iningot mold stools in the class of metal founding.

In the process of casting steelingots itis customary to pour -fhe molten metal into the] molds, andin so doing .tlieweight of the 15. molten metal and the heat from the metal frequently make holes in or pits the stool or plate to such an extent that a platecann'otstand man'ycastmgs before it 1s worn out.

' holes or openings 9. and 10V extending,

4 The continued use of the' 'r'nold and continned action of the. molten metal on the stool or bottom of the mold finally wears. away the. stool, thuscausingthe stool-to be .discarded and a new one is required to replace it. .1 have devised aremovable and '25.-replaceable plu'g for the stool which will eliminate the scrappingof useful material which will perform the; functions of the part required, and which may be discarde when Worn or broken and replaced by'a new and.

fresh piece, thus prolonging-the life 'of'the' stool as a whole'.- Thus the stool will last indefinitely and all that is scrappedin the new device is'the removable centerpiece of the stool when it becomes'wiorn orbroken.

In the accompanying drawings I have illustrated one complete example of the physical embodimentfof my invention co.n

.structed according to the best mode I have so far devised forthe practical application 43 of the principles of my invention.

In the drawings: Figure 1 is a side elevation of a duplex niold,for ingots and its.

carriage, embodying the features-0f my invention. Fig. 2 is a top plan view of the device of Fig. .1, one of the molds however being omitted for convenience of illustration. Fig. 3 is a partial side-elevation and partial sectional view. Fig. l is a transverse sectional view. on line 1 1 of Fig.2. Fig. 5 is a bottom planview of the stool. which forms a part of my invention. Fig. 6 is a side elevation of the removable center plug or replaceable bottom for the mold, to be seated in the stool. I w 5 In illustrating the preferred embodiment sii 'i imaerswere "patented em; as, iois; a tiicaaoii filed March'5, 19'15 ser aiuaias'so.

' pottom, and formed with 1.4 projects throng p oflmyinvention-I hare employed the usual Be itlmo'wn thatfl, Tnozaas H. llfinuvm, 'acitizen of the United States of America,"

tomary; andthe duplex molds and 5 are the standard ingot molds open at top and to side'lugs G for lift-i ing-purposes. f I

The two. molds. are supported upon the stool? which is a metallic plate-designed "to rest upon the flat floor; ofthe car body, nd form the base orsupport for theftwo molds 4'. and 5; I The body of'the stool issteel form'ed'with integral upwardlyprojecting.

'side and endfianges S to encompass the bottom end of the'molds 4 and 5.and- 1"etain them in position on thestool.

As bestshown in Fig. 5, there are two through the stool with flaring walls e. the opening is greater in area at the top of the stool plate than at its bottom. In Fig. 3 it" will be clearly seen that the body of the car is also provided with openings as ll, and q- -these openings which are located in 5031530 7 tion to register withthe openings 9 and 10 stool. These two sets of registered openings 9 11 and 10-'-11 are designed to receive, the

castiron plug 12 which forms the bottom to the-1ngot,1nold. In l ig. .6 the construction 0.

of the plug is apparent, and it will be understood that the'upper flaring portion 13 is adapted. to seat in the flared or beveled-face opening of the stool,- while the lowerportion nthe opening in the stool and into the opening 11 in the'c'ar body. Thus this plug not only serves as a bottom forthe mold, but performs the additional function of-locking the stool on thecai' body to prevent possible shifting of parts.

The/plug 12 is locked to the stool by means of a latch bar 15 which is freely passed through the center loop 16 on the plug and bears upwardly against the under face of the two oppositely disposed bosses 17 formed integral with the stool and projecting down-- wardlytherefrom. at the edge of-the openings 9. andlO in the stool. In Figsrl and 5 .this'construction is clearlyshown and will I be readily understood, and it will be apparent that the plug can be removed from the stool, only after the stool has been removed from the car body. 'This latch prevents up- Ward accidental displacement of the mold bottom or plug, and of course the beveled walls in engagement with the beveled faces of openings -9 and 10, and the squared portion 14 of the plug in the openings 11, all prevent lateral displacement of the plug or bottom members In use the parts are assembled by first locking the plugs in the stool openings,'then locating the stool on the car body with the squared portions 14 fitted in the squared openings 11, and finally placing the molds 4 and 5 in situ between their retaining flanges and upright on the stool as in Fig. 1. The mold is now ready for pouring and this is accomplished in usual manner. It will be noted that the weight of the molten metal is transferred from the center plug or bottom member to the steel stool and car body, because of the beveled sides of the plug and side walls of the stool openings, and the proportionate dimensions of the lower open end of the molds and the greater maximum area of the plug insures proper conditions for forming the ingot in the mold.

From the above description taken in connection with the drawings it is apparent that I have provided a facile, economical and eflicient means for overcoming objections and diflicultiesinherent in a solid or one piece stool, as now customarily used, and eliminated extra and unnecessary expense accompanying the old method of manufacturing stools. I

Particular attention is called to the saving in manufacturing cost of stools by the use of the steel body to the stool and the replaceable center piece or plug, and the cost 'of maintenance is also reduced by the fact that instead of scrapping the whole stool, it is necessary to scrap only the center-piece or plug when it becomes worn. Instead of making the Whole stool of a single integral piece, it will be noted that the stool is composed of a single steel body with interchangeable and removable cast iron centers or plugs, and in some instances these plugs may be made of steel if desired.

What I claim is v 1. The combination in a mold with a supporting member having an opening therein, of a stool formed with a corresponding opening having flaring sides, and a plug formed with beveled sides in the flaring opening and a locking portion in the opening in the supporting member.

' 2. The combination in a mold with a supporting perforated member, of a stool formed with a corresponding but flaring opening, a plug fitted in the flaring opening and having a portion projecting in the perforated member, and an open bottom mold with an interior cross area of less dimensions than the maximum or top area of the plug.

3. The combination with a carriage having an opening, a stool thereon having a corresponding but flaring opening, a mold and retaining flanges on the stool for the mold, and a plug forming the bottom of the mold fitted in the flaring opening and having a member projecting in the carriage opening to lock the carriage and stool together.

4. The combination with a stool having an opening therein with upwardly flaring sides, of a plug formed with beveled sides and seated in said opening, and'locking means carried by said plug for locking the plug in the stoo 5. The combination with a stool having an opening with flaring walls, of a plug with beveled sides fitted therein and formed with a bottom loop, a latch bar passed through said loop, and retaining bosses on said stool at the edge of the opening for said latch bar. i

6. The combination with a perforated supporting member, a stool having a corresponding but flared opening'and retaining,

bosses, of a plug fitted in the flared opening and having a latch bar therein engaging said bosses, substantially as described.

. In testimony whereof I aflix my signature in presence of two witnesses.

THOMAS H. KENVIN. Witnesses:

JOHN F. SWEENY, \V. A. HIn'rLE. 

